Amazon began as an online bookseller in 1995 operating out of Jeff Bezos' garage in Seattle. It has since expanded to sell a wide variety of products globally through websites serving seven countries. Amazon's technology infrastructure relies heavily on Linux and contains some of the world's largest databases, which power personalized recommendations by tracking users' browsing histories and purchases. It encrypts sensitive personal data like credit card information to protect users' accounts and payments.

2. Amazon is a one of the famous online shopping sites. It sells a lot of goods and has sites
serving seven countries, with 21 support centers around the world.
1995: The beginning of Amazon as an e-commerce company. The first selling is book, which sent from Jeff
Bezos garage in Seattle by ship.
1999: Jeff Bezos became Time magazine's Person of this year.
2011: we can say Amazon is a large scale company. In fact, it sells *variety of goods to buyer in global.
*supplies, clothing, jewelry, gourmet food, sporting goods, pet supplies, book, CDs, DVDs, computers,
furniture, toys, garden supplies, bedding.

3. When you are looking amazon.com, it provides you some relative information and goods.
For example, when you are looking certain musician’s CD, the same musician’s another
CD will appear on your page. Why then, where these data come from? The answer is
Customer tracking system. If you visit a web page under Amazon.com, sever records its
cookie and site what you visit next, which means you are interested in the page’s goods
the same as you first visit. As a result of such data statistics, Amazon can provide you
beneficial and necessary information. Say in other words, once you visit Amazon.com,
your personal shopper helps you to find the goods what you may want to buy. Thanks to
this system, you can find a lot of interesting goods only a few searching.

4. The technology core that keeps Amazon
running is entirely Linux-based. Amazon
has the world's three largest Linux
databases, which have capacity 7.8
terabytes (TB), 18.5 TB and 24.7 TB
respectively. Your individual data
explained before this page come from this
database. The data warehouse is divided
into three functions: query, historical
data and ETL (extract, transform, and
load).
In the 2003 holiday season, Amazon’s
database processed more than 1 million
shipments and 20 million stock updates
in one day.

5. Amazon’s data server processes your individual data which help you to find interesting
goods, and also important personal information such as credit card ID. They are more
important than other information. Thus, these data must be encrypted. Amazon uses
SSL (secure socket layer) protocol. Each credit card numbers is separated from
internet-accessible protocol for defend them from hackers attack. Once you input your
secret data into amazon.com, it is recorded in database with your account information.
You needn’t re-input such important information into it. If you receive an e-mail which require
that, it is a fake mail.